static ApiParameter CreateParameter(
ISymbol symbol,
MetadataItem item,
bool isReturn = false
)
{
var type = symbol switch
{
IParameterSymbol s => s.Type,
IEventSymbol s => s.Type,
IPropertySymbol s => s.Type,
IFieldSymbol s => s.Type,
_ => throw new ArgumentException(
$"Symbol {symbol.Kind} is not supported",
nameof(symbol)
)
};
return(ApiParameter.Create(symbol, item, type.ToDisplayString(), isReturn));
}
MetadataItem?GetMetadataItem(ISymbol symbol)
{
var item = DefaultVisit(symbol);
if (item == null)
{
return(null);
}
item.Type = symbol.GetMemberTypeFromSymbol();
return(item.Type == MemberType.Default ? null : item);
}
List <MetadataItem> VisitDescendants <T>(
IEnumerable <T> children,
Func <T, IEnumerable <T> > getChildren,
Func <T, bool> filter
) where T : ISymbol
{
var result = new List <MetadataItem>();
var stack = new Stack <T>(children.Reverse());
while (stack.Count > 0)
{
var child = stack.Pop();
if (filter(child))
{
result.AddNotNull(child.Accept(this));
}
foreach (var m in getChildren(child).Reverse())
{
stack.Push(m);
}
}
return(result);
}
void AddMethodSyntax(IMethodSymbol symbol, MetadataItem item)
{
if (!symbol.ReturnsVoid)
{
item.Syntax.Return = CreateApiParameter(symbol, symbol.ReturnType, true);
}
item.Syntax.Parameters = symbol.Parameters
.Select(p => CreateApiParameter(p, p.Type, false))
.ToList();
ApiParameter CreateApiParameter(ISymbol p, ITypeSymbol type, bool isReturn)
{
var param = ApiParameter.Create(p, item, type.ToDisplayString(), isReturn);
param.Attributes = GetAttributeInfo(p.GetAttributes());
return(param);
}
}
public override MetadataItem VisitNamedType(INamedTypeSymbol symbol)
{
var item = DefaultVisit(symbol);
if (item == null)
{
return(null);
}
GenerateInheritance(symbol, item, ApiFilter);
if (!symbol.IsStatic)
{
item.ExtensionMethods = GenerateExtensionMethods(symbol);
}
item.Type = symbol.GetMemberTypeFromTypeKind();
item.EnsureSyntax();
item.Syntax.Content = symbol.GenerateSyntax(item.Type, ApiFilter);
item.Syntax.TypeParameters = symbol.TypeParameters
.Select(x => ApiParameter.Create(x, item))
.ToList();
if (symbol.TypeKind == TypeKind.Delegate)
{
AddMethodSyntax(symbol.DelegateInvokeMethod !, item);
}
item.Modifiers = symbol.GenerateNamedTypeModifiers();
item.Items = symbol.GetMembers()
.Where(s => !(s is INamedTypeSymbol))
.Select(x => x.Accept(this).SomeNotNull())
.Values()
.ToList();
item.Attributes = GetAttributeInfo(symbol.GetAttributes());
return(item);
}
public override MetadataItem VisitMethod(IMethodSymbol symbol)
{
var item = GetMetadataItem(symbol);
if (item == null)
{
return(null);
}
item.EnsureSyntax();
if (symbol.TypeParameters.IsNotEmpty())
{
item.Syntax.TypeParameters = symbol.TypeParameters
.Select(p => ApiParameter.Create(p, item))
.ToList();
}
AddMethodSyntax(symbol, item);
var syntaxContent = symbol.GenerateSyntax(item.Type, ApiFilter);
if (!string.IsNullOrWhiteSpace(syntaxContent))
{
item.Syntax.Content = syntaxContent;
}
item.Modifiers = symbol.GetMemberModifiersAsStrings();
item.Implements = symbol.GetMethodImplements(ApiFilter);
item.Attributes = GetAttributeInfo(symbol.GetAttributes());
item.IsExplicitInterfaceImplementation =
!symbol.ExplicitInterfaceImplementations.IsEmpty;
item.IsExtensionMethod = symbol.IsExtensionMethod;
return(item);
}
